SoftBank doesn’t appear to be worried about Dish Network’s recent bid for Sprint. The Japanese carrier said in a statement to AllThingsD that it believes its proposed merger offers a superior option to Sprint shareholders with both “short and long-term benefits to Dish’s highly conditional preliminary proposal.” Dish on Monday challenged SoftBank’s merger proposition with a bid of its own worth $25.5 billion. The proposed deal values the carrier at $7.00 per share, considerably higher than SoftBank’s offer of $4.03 per share. Despite the higher bid, SoftBank remains confident and said that it expects the transaction to be completed by July 1st.